she is only 4 years old she can plays the piano.A. Although butB. Although \C. But

问题补充：

she is only 4 years old, she can plays the piano.

A. Although, but

B. Although, \

C. But , \

D. \, and

答案：

A. Although, but

(答案→)B. Although, \

C. But , \

D. \, and

解析：句意：虽然她只有四岁，但她会弹钢琴。but,although都有虽然------但是------的意思，但用法有区别：在一个句子中but,although是不可以连用的 ；but放在句中，although＼though放在句首，故选B。